Setup Metamask
Setup your custom RPC to connect to Metamask
1) Open Metamask, and select "Custom RPC" from the Network Dropdown.
2) In the "Custom RPC" Settings, add in the xDai network details and click Save:
Alternative RPCs:
  • https://dai.poa.network/
  • https://xdai.poanetwork.dev/
  • https://xdai.1hive.org/
  • https://rpc.xdaichain.com/
Note: MetaMask recently updated the ChainID to be a required field. When you update, you may need to reenter the chain id 100, and it will be converted to a hexidecimal: 0x64.
If you are having issues, try entering 100 for Chain ID and resaving the configuration.
If you'd prefer not to make these changes, provides a built-in xDai RPC.

Connecting to a Hardware Wallet

Instructions for using MetaMask with a Ledger or Trezor: https://metamask.zendesk.com/hc/en-us/articles/360020394612-How-to-connect-a-Trezor-or-Ledger-Hardware-Wallet
Guide was taken from Tokenbridge. For more information regarding the bridge, please refer to docs.tokenbridge.net.
Last modified 1yr ago